No industrial user shall introduce or cause to be introduced into the city wastewater collection system any pollutant or wastewater which may cause interference, or impedes pass-through. These general prohibitions apply to all users of the system whether or not the source is subject to categorical pretreatment standards or any other national, state or local pretreatment standards or requirement. Furthermore, no user may discharge the following substances into the city wastewater collection system:
A. Pollutants which create a fire or explosive hazard in the collection system, including, but not limited to, waste streams with a closed cup flashpoint of less than one hundred forty degrees Fahrenheit (140°F) (60°C) using the test methods specified in 40 CFR 261.21;
B. Any pollutants which will cause, but in no case discharges with a pH of less than 6.0 or more than 11.0, corrosive structural damage;
C. Solid or viscous substances in amounts or sizes which will cause obstruction of the flow in the sewer collection system resulting in interference;
D. Any pollutant, including oxygen demanding pollutants (BOD, etc.), released in a discharge at a flow rate and/or pollutant concentration which will cause interference;
E. Any wastewater having a temperature greater than one hundred eighty degrees Fahrenheit (180°F) (82°C), or which will inhibit biological activity in the treatment plant resulting in interference, but in no case heat in such quantity that it causes the temperature at the treatment plant to exceed one hundred four degrees Fahrenheit (104°F) (40°C);
F. Petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin, in amounts that will cause interference or pass-through;
G. Petroleum oil, biodegradable cutting oil, or products of mineral oil origin, in amounts that will cause interference or pass-through;
H. Pollutants which result in the presence of toxic gases, vapors or fumes in a quantity that may cause acute or chronic worker health and safety problems;
I. Any trucked or hauled pollutants;
J. Any noxious or malodorous liquids, gases, solids, or other wastewater which, either singly or by interaction with other wastes, are sufficient to create a public nuisance, a hazard to life, or to prevent entry into the sewers for maintenance and repair;
K. Any wastewater which imparts color which cannot be removed by the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions;
L. Any wastewater containing any radioactive wastes or isotopes;
M. Stormwater, surface water, ground water, artesian well water, roof runoff, subsurface drainage, swimming pool drainage, condensate deionized water, noncontact cooling water, and unpolluted industrial wastewater;
N. Any sludges, screening, or other residues from the pretreatment of industrial wastes;
O. Any medical wastes;
P. Any wastewater causing the treatment plant effluent to fail a toxicity test;
Q. Any wastes containing detergents, surface active agents, or other substances which may cause excessive foaming;
R. Any discharge of fats, oils, or greases of animal or vegetable origin is limited to one hundred milligrams per liter (100 mg/l). (Ord. 2001-001, 2001)